CVE-2025-29904

Name: CVE-2025-29904
Creator: NVD / NIST
Published: 2025-03-12T13:15:38.05+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2025-29904 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. In JetBrains Ktor before 3.1.1 an HTTP Request Smuggling was possible. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

In JetBrains Ktor before 3.1.1 an HTTP Request Smuggling was possible

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS Probability

0.30%

22.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-444

Affected Software

Vendor	Product	Versions
Jetbrains	Ktor	< 3.1.1

References

https://www.jetbrains.com/privacy-security/issues-fixed/Issue Tracking

Timeline

Published: Mar 12, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-29904?

In JetBrains Ktor before 3.1.1 an HTTP Request Smuggling was possible

How severe is CVE-2025-29904?

CVE-2025-29904 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2025-29904?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-29904?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST